Dictionary of Medieval Names
from European Sources

Willberna f. Old High German willo 'will' + Old High German, Old Saxon bero 'bear'.

Germany
Latin
1258 Willeberne (gen) hennes-vol1 182
Cite as: S.L. Uckelman. "Willberna". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Willberna.